Half to jasper slaymaker



(No Model.)

1). WILLIAMSON.

10E CUTTER.

Patented Dec. 25, 1888.

W/T E88 8: I l/VI/E/VTOH, V

ATTORNEY,

N. PETERS. Phuto-Lilhogmphnr. Wzuhinglom n. c,

UNITED STATES PATENT Trice.

DANIEL lVlLLIAMSON, OF SUNBERY, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO JASPER SLAYMAKER, OF SAME PLACE.

ICE-CUTTER.

SPECIFICATION forming part of Letters Patent No. 395,100, dated December 25, 1888.

Application filed July 14, 1888. Serial No. 280,007. (No model.)

To (LZZ whom it may GOTLOEPIL.

Be it known that l, DANIEL WILLIAMsoN, of Sunbury, in the county of Northumberland and State of Pennsylvania, have iiivented a new and useful lmproi'ement in Ice- Cutters, of which the following is a specification.

The object of my invention is to provide an ice-cuttingmachinewhich may be conven- IO iently operated by hand for cutting grooves into the surface of ice upon rivers to facilitate its division into regular blocks preparatory to harvesting the same.

Figure 1 is a side elevation, nirtly in section; and Fig. 2 is a plan view.

In the drawings, X represents the main frame of the machine. In journals in the upper part of this frame there is mounted a shaft, 0, provided with a crank-handle, I, by which power is transmitted to work the machine. From this point of application the power divides, part of it going to the cutting-chisel to work it and the other part going to the propelling devices for giving a the ice. For the latter purpose the shaft 0 has rigidly attached to it a pinion or small 1 idly attached to a shaft, K, which latter is 1 also provided on each side of the machine with a supporting and propelllug-wheel, K, which prepelling-wheels are formed with teeth or spurs that penetrate the ice and secure a hold thereupon for propelling the machine. This train of gears just described, it will be seen, causes a diminished motion to be transmitted from the crank-handle to slowly propel the machine over the ice. On the same shaft 0 bearing the crank-handle there is rigidly attached a large gear-wheel, A, whose teeth engage with a pinion, B, on a shaft, C. Rig-idly attached to this same shaft is a large gear-wheel, C, which engages with a small gear-wheel, D, and which latter meshes with geanwheel E on crank-shaft E. The outer slow progressive motion to the machineacross ends of this shaft are provided with cranks G, while the middle of the shaft is provided with a balance-wliieel, 1*. To the cranks G, on each side of the machine, are connected the chisel-bars II, which at their extreme lower ends are provided with sharp chiseledges H. These bars H slide through guides .l, which are made to oscillate in. a circular bearing in a plate, J. The motion thus transmitted to the chisels, it will be seen, is an accelerated one.

S is a toothed wheel journaled at the front of the machine, which. wheel runs upon the ice and supports the front end of the machine.

In operating my machine the crauk handle P is rotated, and this serves through the gears (1) N M L to slowly propel the machine forward, and also through the gears A C D E serves to rotate the cranks G in. the direction of the arrow, which causes the chisel-bars H to have a compound reci price-oscillatory motion, c-ausin the said bar both to slide in the guide J and also to rock with the same, as about a fulcrum. The movement which the bar H makes is a downstroke for the rear half of the crank-stroke and an upstroke for the front half of the crank-stroke, which gives to the chisel-point below the guide J a re versed or rearwardly-traveling sweep as it cuts down into the ice, as indicated by the arrow, and which rearward sweep acts in harmony with the forward progression of the machine as it moves over the ice from its feed devices. With this machine, the feed mechanism being arranged for a diminished motion and the chisel mechanism for an accelerated motion, it will be seen that the rapid impact of blows delivered. by the chisel upon the ice cuts a groove in the same, which permits of easy subdivision of the sheet of ice into blocks of approved size.

Having thus described my invention, what I claim as new is The combination, with the main frame, of a drive-shaft, O, a train of -diminishing gear- 5 wheels, 0 N M L, shafts M and K, and toothed feed-wheels K, fixed to shaft K, the train of speed-accelerating wheels A B C D E, crank-shaft E, with cranks G and flywheel F, rods H, jointed t0 the cranks and provided with ehisels H at the lower ends, and rocking bearings J, embracing and guid- 1 ing the chisel-rods, the said chisel-rods and gears being arranged to cause the chisels to move to the rear on the downstroke to cooperate with the advance movement of the machine, substantially as described.

DANIEL VILLIAMSON.

\V i tn esses:

EML. WILVERT, JNo. OTTO. 

